Uniformly Accelerated Motion and its Relations, Velocity-Time, Position-Time Graph NEET Questions

Physics - Kinematics

Uniformly Accelerated Motion and its Relations, Velocity-Time, Position-Time Graph MCQ Questions


7.
The slope of a velocity-time graph gives:
A.
Displacement
B.
Distance
C.
Speed
D.
Acceleration
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ANSWER :
D. Acceleration
8.
For uniformly accelerated motion starting from rest, the position-time graph is:
A.
A straight line through origin
B.
A parabola opening upward
C.
A horizontal straight line
D.
A straight line with negative slope
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ANSWER :
B. A parabola opening upward
9.
A car starts from rest and accelerates uniformly for 10 seconds to a velocity of 20 m/s. It then moves with uniform velocity for 20 seconds and finally comes to rest in 5 seconds under uniform retardation. The total distance covered by the car is:

NEET - 2018

A.
300 m
B.
500 m
C.
700 m
D.
800 m
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ANSWER :
B. 500 m
10.
Which kinematic equation directly relates velocity, displacement and acceleration without involving time?
A.
v = vâ‚€ + at
B.
x = v₀t + ½at²
C.
v² = v₀² + 2ax
D.
x = (v+vâ‚€)t/2
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ANSWER :
C. v² = v₀² + 2ax
11.
A ball is dropped from rest. The distance fallen in the 3rd second (g = 10 m/s²) is:
A.
25 m
B.
45 m
C.
5 m
D.
10 m
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ANSWER :
A. 25 m
12.
Stopping distance is proportional to the square of initial velocity. If velocity is doubled, stopping distance becomes:
A.
2 times
B.
4 times
C.
8 times
D.
½ times
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ANSWER :
B. 4 times